SU(3) sum rules for charm decay

Yuval Grossman, Dean J. Robinson

Research output: Contribution to journalArticlepeer-review

70 Scopus citations

Abstract

We present flavor SU(3) sum rules for D → PP and D → PV decay amplitudes, that are valid to second order in symmetry breaking by the strange quark mass spurion. Decay rate sum rules are also computed to this order. Particular attention is given to sum rules arising from the isospin and U-spin subgroups, the former providing sensitive tests for alternative sources of SU(3) breaking. We apply the latter together with the postulated ΔU = 0 rule for the large penguin picture to predict the ratio and difference of the direct CP asymmetries for D → KK * and D → πρ.

Original languageEnglish
Article number67
JournalJournal of High Energy Physics
Volume2013
Issue number4
DOIs
StatePublished - 2013
Externally publishedYes

Keywords

  • CP violation
  • Standard Model
  • Sum Rules

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